Machine fob manufacturing- babkel-heads



unirsi) srafr L. B. BATGHELLER, OF ROCHESTER, NEW YORK.

FERTE.

MACHINE FOR MANUFACTURING BARREL-HEADS.

drawings, making part of this specification,

in which- Figure l, is a front elevation thereof, Fig. 2, a plan view ofthe top of the machine, Fig. 3, is an elevation of the clamping disk151C, detached, the hollow cam shaft being shown in section, Fig. 4, isa transverse section of the upper part of the machine on the line m w ofFig. 2.

Similar letters designate corresponding Y parts in all the figures.

As shown in the drawings, A represents an ordinary rectangular frame ofa convenient height for supporting the working parts of the machine.Transverse girts a La are provided to furnish bearings for the shaft D,to one end of which is attached the head disk O. Opposed to it but on anindependent shaft E, the clamping disk C, is hung. At the opposite endof this shaft is aflixed the driving pulley, F, to which the power isapplied. The shaft E, passes through a hollow shaft G, which is dividedobliquely across on the line e into two parts, one of which f isattached to the box c and the other is provided with the pulley g towhich a cord 71, or its equivalent is attached and extends down to thefoot lever L. By

depressing this lever the pulley g turns the part of the shaft to whichit is attached,

which acting as a cam against the oblique surface of the stationarypart, moves the shaft E, endwise, forcing the clamp O, against itsstationary counterpart. In doing this it acts against the collar z'which is firmly fixed on the shaft, the part Ur, being loose thereon inorder to allow of the free revolutions of the shaft.

The disk C', is provided with lugs or hooks la, la, Fig. t, upon oneside which sustain the staves of which the barrel head is formed, thepieces being laid one upon another in the space between the two disksuntil the required extent of material for the head is obtained. The footis then placed on the lever L, and the staves are securely clampedbetween the two disks, and so held while the operation of cutting outthe head is performed as follows:

The circular saw m which is hung at the end of the oscillating shaft K,is brought in contact with the staves by the same act which tightens theclamps upon them, by means of the cord J, which connects the table U,bearing the arbor of the saw, with the foot lever L. rfhe cord passesover pulleys n n to give it the proper direction and is so arranged, asto move the saw up to the `cutting point simultaneously with theclamping of the staves, and the shaft E, being put 1n motion the stavesare carried slowly around one revolution, the saw in the mean timecutting out the circular head, and giving the required bevel to the edgeupon one side, while that on the other is produced by a series of smallknife-cutters 0 o attached to the side of the saw. The saw is madeconcave or dishing to adapt it to the degree of bevel required for thecircle of t-he head and prevents binding.

A pawl-lever l), of the form represented, falls with its hooked end 1into a hole on the underside of the saw frame or table, and holds it ina fixed position for cutting during a single revolution of the disks,but a projection s is provided on the disk C, which by striking the longarm of the lever throws it out (as shown by dotted lines in Fig. 4L),and the saw is immediately withdrawn by means of the spring t acting onthe table U. A spring Z acting against the collar i throws back theshaft E, and releases the head which is then removed, and its placeagain filled with staves.

The application of the hooks c f: to the 'heading disk C, accomplishes,in a very simple and perfect manner, a part of the operation which hasheretofore required complicated mechanism, vizthe arranging and holdingthe supply of staves to form the head before they are secured andbrought to the saw. The disk being always stopped at the point whenthese hooks are underneath, they sustain the staves as they are laidbetween the two disks, until they are secured by clamping, and offer noobstacle to the removal of the head when finished, as it drops by themthe moment it is unclamped.

lThe saw m is driven by a band from a shaft above running on the axialpulley o, which is placed precisely over the pivot which forms thecenter of motion of the table U. By this arrangement the tableoscillates to move the saw the required distance without affecting theband on the pulley materially and entirely obviates the necessity ofunbanding or using a guide pulley. The motion of the saw is notsuspended or interrupted while its position is being changed.

A spring g/ is provided for the cord h to allow it to elongate slightlyafter clamping the heading, in order to permit the lever L, to act onthe saw table to feed the saw through the thickness of the heading whenthe cut commences, after which the pawl holds it to its work. The pawllever, in addition to its other onices serves to prevent the disks fromturning backwards under the influence of the saw when it is entering thestav'es, and the projection s by which this is accomplished, is curvedto a circle of which the axis of the pawl is the center, to prevent thelever slipping olf under the counter strain of the saw.

The rotation to feed the staves to the saw may be effected eitherby handwith a crank or by power, suitable mechanism being employed in thelatter case to stop the motion at the required point.

Vhat 1 claim as my invention and desire to secure by Letters Patent, is-

l. The combination and arrangement of the passive disk C, with theclamping disk C., hollow cam-shaft G, and foot lever L, together withthe cord J, for actuating the saw table U, simultaneously with theclamping of the staves, and the pawl and lever P, operating conjointlysubstantially as `and for the purposes set forth.

2. I further claim the application of the lugs or hooks 7c to theclamping disk C, for the purpose of sustaining the staves while beingsupplied to the disks, substantially in the manner set forth.

L. B. BATCHELLER. lVitnesses:

I. H. GRAVES, S. J. ALLIS.

